Nike Logo Silicone Training CapNike Swim Unisex Logo Silicone Training Cap is designed to protect your hair and prevent drag in the water. It's made from durable hypoallergenic, high-stretch silicone material that stands up to regular use in chlorine. A textured lining provides a secure grip so you can swim without distractions.HYPOALLERGENIC, HIGH-STRETCH silicone materialTEXTURED LINING increases grip for a secure fitDURABLE material stands up to regular use in chlorine Nike Nike Unisex Logo Silicone Training Cap